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Finding the Fourth Proportional to 3,305.34, 4,956.86 and 964.70

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Solution

The fourth proportional to 3,305.34, 4,956.86 and 964.70 is: 1,446.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,305.34 : 4,956.86 = 964.70 : x
  2. Step 2: Convert to fraction form
    3,305.34/4,956.86 = 964.70/x
  3. Step 3: Cross multiply
    3,305.34x = 4,956.86 × 964.70
  4. Step 4: Simplify right side
    3,305.34x = 4,781,882.84
  5. Step 5: Solve for x
    x = 4,781,882.84/3,305.34
  6. Step 6: Final answer
    x = 1,446.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.